Gurgling abdomen, back pain, irregular menstruation, dysmenorrhea, hemorrhoids with bleeding, lower limb paralysis, etc.

On the waist, below the spinous process of the 3rd lumbar vertebra, 1.5 cun lateral to the midline. (This acupoint is bilateral, one on each side.)

Sit up straight or lie prone. Push down from the spinous process of the 2nd lumbar vertebra to the 3rd lumbar vertebra's spinous process, then measure two horizontal fingers lateral from its lower edge, and press where there is a sensation of soreness and swelling, which is the location of this acupoint.